This is why I want to hear all of the aftermarket exhausts in action. I really don't want to lose the fart and explosion sounds from the car. Love that! Worried that aftermarket will affect it. (Can anyone with akra or eisenmann comment?)

As far as active sound, I agree it would have been much better for BMW to include an on/off, or even a variable volume setting. Then any naysayers could simply turn it off. Quite un-German of them not to actually. For God's sake, you can adjust the headlight delay after turning the car off by individual second increments.